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Preparation of Small RNA NGS Libraries from Biofluids

  • Alton Etheridge
  • Kai Wang
  • David Baxter
  • David GalasEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1740)

Abstract

Next generation sequencing (NGS) is a powerful method for transcriptome analysis. Unlike other gene expression profiling methods, such as microarrays, NGS provides additional information such as splicing variants, sequence polymorphisms, and novel transcripts. For this reason, NGS is well suited for comprehensive profiling of the wide range of extracellular RNAs (exRNAs) in biofluids. ExRNAs are of great interest because of their possible biological role in cell-to-cell communication and for their potential use as biomarkers or for therapeutic purposes. Here, we describe a modified protocol for preparation of small RNA libraries for NGS analysis. This protocol has been optimized for use with low-input exRNA-containing samples, such as plasma or serum, and has modifications designed to reduce the sequence-specific bias typically encountered with commercial small RNA library construction kits.

Keywords

miRNA Extracellular RNA Sequencing Biofluid Serum Plasma 

Notes

Acknowledgements

This work was supported in part by the NIH Common Fund, Extracellular RNA Communication Consortium (ERCC) 1U01HL126496-01. The authors would like to thank Maria D. Giraldez for helpful suggestions in the preparation of this manuscript.

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Copyright information

© Springer Science+Business Media, LLC 2018

Authors and Affiliations

  • Alton Etheridge
    • 1
  • Kai Wang
    • 2
  • David Baxter
    • 2
  • David Galas
    • 1
    Email author
  1. 1.Pacific Northwest Research InstituteSeattleUSA
  2. 2.Institute for Systems BiologySeattleUSA

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